Oil and gas buhner



16,601 April 19, 1927, L. G. DANIELS Re OIL AND GAS BURNER OriginalFiled Jan. 1,7. 1922 Reissued Apr. 19, 1927.

UNITED STATES PATENT OFFICE.

LEE G. DANIELE, F ROCKFORD, ILLINOIS.

OIL AND GAS BURNER.

Original No. 1,484,814, dated February 26, 1924, Serial No. 529,824,filed January 17, 1322. Application for reissue iled May 23, 1925.Serial No. 32,517.

This invention relates to liquid fuel burners` adapted for use inheaters and furnaces, and has more particularly reference to oilburners, and also to a combination oil and gas burner. The liquid fuelused in burners of this character is a hydrocarbon, low gravity oilwhich is inherently diiiicult to bring to a state of combustion,especially with a simple and inexpensive burner. such as therequirements of this trade demand.

One of the important objects of the present invention is the provisionof a combined oil and burner o1 novel construction which will bepractical and etiicicnt. In this regard, my invention contci'nplates theuse of gas. first as a pilot lighter lo facilitate starting the burner,and secondly as a primary burner in conjunction with the oil burner tosuit the conditions and requirements of those localities Vin which bothoil and gas may be economically used as fuel.

Another object the provision of an oil burner comprising the followingprincipal parts, namely: a base, a burner bowl and an air pipe casingarranged in a novel and particularly advantageous manner and permittingready assembly and accurate adjustment of the parts to obtain mosteilicient results.

Still another object is the provision of an air pipe or air supplycasing embodying heat radiating ribs designed to increase the efficiencyof the burner.

In furtherance of the foregoing, I have aimed to provide a burnerconsisting of comparatively few parts constructed in suoli simple mannerthat they may be pro-duced at a low cost and may be quickly and easilyassembled and adjusted. and which when in operative condition willfunction very efficiently and will serve in a satisfactory manner thepurposes intended.

Other objects and attendant advantages will be appreciated by thoseskilled in this art as the invention becomes better understood byreference to the following description when considered in connectionWith the uccomjianying drawings. in which Figure 1 is a top View of aburner embodying my invention;

Fig. 2 is a vertical sectional view through the burner takensubstantially on the line ))2 of Fig. 1; and

Figs. 3 and 4: are detail sectional views taken substantially on thelines 3k?) and 4-4 of Figs. 1 and 2. respectively.

The principal parts mentioned above. namely, the base, burner bowl andair-pipe easing are designated. generally by characters and 8,respectively, These parts are preferably castings. The base (i. annularin form, has a peripheral flange 9 and is adapted to be permanently setinto a furnace or heater, preferably by cementingl below the` flange 9.

The burner bowl 7 has an annular portion 11 adjustably supported on thebase as will be described. and has a bowl portion 12 at the center ofwhich is formed an upstanding burner 13. This burner is offrnsto-conic-.ll shape and is referred to herein as a cone burner. Thereis a central fuel passage 14 through the burner proper, and a liquidfuel supply pipe 15 connects with the lower end of this fuel passage.Any suitable means may be provided for regulating the flow or feed offuel through the pipe 15. such for example as a regulating valve 16. nuoverflow pipe 17 is provided for the bowl 12 as a safety factor.permitting overflow of the liquid l'uel to actuate a shut-off valve.such as described in my Patent No. 1.524.914, in the event that theburner flame should accidentally be extinguished. However. any suitablesafety device may be employed. although its use is not essential to thepresent invention. The burner bowl is also shaped to provide aplurality, four in the present instance, of circumferentially spacedvertical air passages 18. The means for adjustably supporting the burnerbowl on the base consists in the present instance of a number of equallyspaced set screws 19 threadingly engaged in the rim portion ot the bowl'11. as shown in Fig. 3. and resting on the top of the hase 6. By properadjustment of these set screws the burner bowl may be very accuratelyleveled` that is, as regards position of the burner proper. so that theoil rif-ing in the passage 14 will he equally distributed over the topof the cone burner and will flow down evenly over the entire peripheralarea ot: said burner. t'lueh an adjustment is an important factor in aburner si' this character as it a. means of insuring V`puit distributionol the oil and promotes reiter combustion and greater ellicieney. lheset screws may be locked in the set position by uterine of a suitableplastic filling 2l which may.y itl desired. be subsequently lenuivedt'or the purpose ot readjusting the set screws. in the event that theburner should get out ot 'alignment by shitting or settling ot' thefurnace.

'lhe air supply casing' is shaped to provide a central mixing chamberE22 surrounding the burner 13 and further to provide radial pipesregistering with the air passages le. The pipe portions 23 of the airrupply 'using seatV on the burner bowl and thus support said casing inposition. The mixing chamber 22 has at its lower end an annular outlet2l about the burner, through which outlet the products of combustionescape, as will be presently described. The air drawn into the mixingchamber through the passages 'i8 and the pipes 223 will be heated byreason otl the fact that the burner.

flames envelop the pipes 23. This air will loe brought to a hightemperature by reason 0f the radiating ribs formed on the interior wallsot' the pipes and shaped to follow the general course o-t' the airtherethrough.

l have now provided a gas burner conibined in a novel manner with theoil burner and adapted to serve both as a pilot lighter and as a primaryburner, or in conjunction with the oil burner, or independently thereol.In the present example. this gas burner consists ot a hood or invertedcup shaped cap 26 supported by the air supply casing 8 eentrally aboveand inclosing the top ot' the burner 13. A gas supply 2 connects withthe gas burne' as shown, and the gas is delivered downwardly through :ijet opening 2S into the chamber formed by the hood 2G. The gas willissue through the opening il ilieripheraily about the cone burner liland the tlaine will completely envelop said cone. therebyr bringing to astate ot combustion the iilm of oil flowing down the peripheral wall otthe cone.

In operation, the gas burner serves as a pilot burner and by heating'the cone burner enables quick and convenient lighting of the oil burner.This pilot'lighter is especially' delirable. because of its convenienceas dis tinguished trom prior oil burners now in common use. which aremore or less inconvenient and difiicult to light. This facility otlighting has another advantage. It insures a ontinuous flame. Which inthe absence of a pilot burner is sometimes extinguished by a strong orsudden draft. The ges burner may be also used as a` primar)r burnereither in conjunction with the oil burner or independently thereof,according to the conditionsJ at hand. This is especiah ly desirable inthose communities in which both oil and natural gas are available asfuel but the supply varies and at certain times in the year may be verylow either on account ot' increased consumption or for other reasons insuch event, the owner ot a burner ot the character described herein muyadjust the fuel Yleed to liteit suit the particular conditions at hand.As regards the function of the burner, it will be manitest that the oilrising in the passage 14 will flow over the top ol the. rone burner,equally distributed cirerunferentially thereabout, and will iow down theperiphery oiiv said burner. The oil will be heated tirst by con--duction from the burner. which in turn has been heated by the gas flameand by coinbustion ol' the oil on the periphery of the burner` und willbe tiuaily heated and brought to a state o combustion by the iaine atthe bottoni of the mixing chamber. In efficient operation ot this burnerthe oil will be consumed before it reaches the bottom o the conc. ltwill also be noted that b v reason ol the facilities for heating theair,y quicker and better comlnistion will be insured.

,It is believed that the foregoing conveys a clear und irstanding ot'the objects prefaced above, and while Vl have illirftrated but a singleworkingl embodiment. it should be understood that considerable changeVmight be made in details of construction without departing lron'i thespirit and scope ot' the invention as expressed in the appended claims.

I claiml. In a liquid fuel burner, the combination of a cone burner, acentral fuel supply passage therein, whereby the t'nel Hows over the topand down over the periphery ot' the cone burner. a supply hood embracingthe top ot the cone burner and leaving a peripl'ieral opening' about thesame,y and a gas supply pipe entering said hood Irom one sido thereof`whereby a gas thune will be delivered downwardly peripherally about thecone burner.

2. In a burner of the character described. the combination ot a burnerhowl having an upstanding cone burner provided with a central oilpassage trom which the oil flows over the top ot the burner and down theouter side thereof, an air supply casing over said burner. and a supplypipe extending upwardly through the burner bowl at one side of theburner and upwardly through the air supply casing and thence laterallyto a point in proximity to said burner for directing a gas flamedownwardly onto the cone burner.

3. A burner of the character described comprising a stationary annularbase. a burner bowl supported on said base plate and having a centralupstanding cone burner llt) lift' and a pluralityv ot circumterentiallyspaced vertical air passages, an air-supply casing supported on saidbowl and shaped to provide a mixing chamber' about the cone burner and aplurality of air pipes radiating from said mixing chamber andregistering with the air passages in the bowl, said casing having anoutlet above the cone burner at the bottom oi' said mixing chamber, anda burner in said mixing chamber `for directing a lame peripherally ofthe cone burner.

el. A liquid fuel burner ot the character described comprising anannular base, an annular burner bowl seated on theI base and having acentral upstanding burner cone and circumferentially spaced vertical airpassages, a fuel supply pipe connected to said cone burner, an air pipecasing seated on the burner casing and having air passages registeringwith those in the burner casing, said passages terminating in a mixingcompartment surrounding the cone burner and havingI a lower outlet Jforthe escape of products of combustion` a supply hood concentric with andembracing the cone burner; and a pipe for supplying gas to said hood,whereby the gas: dame is directed downwardly about the cone burner.

5. A burner of the character described comprising an annular base, aburner bowl adapted to be seated on the base and carrying an upstandingburner and a mixing chamber casing about the burner, and meansadjustably supporting the burner bowl upon said base for leveling theburner.

A burner of the character described comprising an annular base, a burnerbowl adapted to be seated on the base and carrying an upstanding burnerand a mixing chamber casing about the burner, and means adjustablysupporting the burner bowl upon said base comprising a plurality ot'adjustable elements spaced circumferentially otl the burner bowl foreffecting' vertical adj ustment of the bowl with respect to the base.

T. A burner ot' the character described comprising a base adapted to belixcdly secured in a furnace or heater, an upstanding liquid fuel burnerhaving a central fuel supply passage through which fuel is deliveredover the top of the burner and downwardly over the peripheral wallthereof, and means supporting the burner on said base with capacity toradjustment to insure even distribution ot the oil over said peripheralwall.

S. ln a burner of the character described, the combination of a burnerbowl, a cone burner therein` a mixing chamber about the burner, saidburner having a central vertical liquid fuel supply passage whereby thefuel will flow over the top of the burner and down the outer sidethereof, and means for adjusting said cone burner to insure evendistril'iution of the oil periplierally about the burner.

9. In a liquid fuel burner of the character described, the combinationof a burner bowl having a central upstanding cone burner, an air supplycasing forming a mixing chamber about the burner and proriding aplurality of radiating air pipes` and heat radiating ribs in said airpipes.

10. In a liquid fuel burner ot' the character described, the combinationot' a central burner, a casing providing a mixing chamber about theburner, and air supply pipes radiating from said mixing chamber andhaving internal heat radiating ribs.

11. A burner ot the character deiaribed comprising a burner bowl havinga central upstanding cone burner, a fuel-supply pipe connected to saidcone burner, whereby fuel will be delivered downwardly over the outerside of the burner, said bowl having a plurality oit' circumferentiallyspaced vertical air passages, an air-supply casing above the burner bowlforming a mixing chamber about the cone burner and having a plurality ofair-supply pipes radiating tron: said chamber and registering with saidvertical passages, a gas burner in said mixing chamber carried by theair-supply casing, and means for supplying gas to said burner.

12. A burner of the character described comprising a burner bowl havinga central upstanding cone burner, a fuel-supply pipe connected to saidcone burner, whereby iuel will be delivered downwardly over the outerside of the burner, said bowl having a plurality of circumferentiallyspaced vertial air passages, an air-supply casing above the burner bowlforming a mixing chamber about the cone burner and having a plurality ofair-supply pipes radiating from said chamber and registering with saidvertical passages, a gas burner carried by the airsupply casing abovethe cone burner, and means for suj'iplying gas to said burner.

i3. A burner ot' the character described comprising a burner bowl havinga central upstanding conc burner, a fuel-supply pipe connected to saidcone burner, whereby fuel will be delivered downwardly over the outerside of the burner, said bowl having a plurality ot' circumferentiallyspaced vertical air passages, an airsupply casing above the burner bowlJforming a mixing chamber about the cone burner and having a pluralityof air-supply pipes radiating` from said chamber and registering withsaid vertical passages, a gas burner in said mixing chamber, and agas-supply pipe extending through one of said air passages and air pipesand connected to the gas burner.

14. In an oil burner, in combination, a burner bowl having a liquidJfuel burner, an air supply casing overlying the burner bowl adapted tobe heated by the burner and to deliver air thereto for supportingcombustion` and a gas supply conduit extending through Said air supplyCasing and having,` i1 delivery opening directed downwardly t0- wurd theburner for delivering a gus flame onto said burner for heating it andigniting the liquid fuel.

l5. 111 an oil burner, in Combination, :i burner bowl having a. liquidfuel burner; means providing an air supply for the burner comprising anair easing overlying the burner und adapted to be heeled thereby so isto prehent ihe uir delivered to the burner` und an air inlet passage forsaid cashugl extending' up through the burner bowl: und n gee lighterpipe extending up through J Suid uir inlet passage and adapted fordeliveringl n gas Haine for lighting the burner.

lt. ln combination, a liquid fuel burner, an air supply conduit fordelivering air thereto having' an air inlet extending up- ;ni wurdly etthe side of the burner und over the saine so as to be heated by theflame, and :i gue supply pipe extendingr through said inlet andproviding a pilot lighter for de livering u llame onto the liquid fuelburner i through the delivery end ol" Suid nir inlet.

17. In Combination, a liquid fuel burner,

un air supply casing for delivering air to Suid burner, said easingbeing so located ne to be heated by the burner l-or pre-heldin;r the airdelivered thereto, and a gus lighter including piping disposed withinlaid air supply Casing extending to a point sufliciently close to thedelivery end ot' the casing for delivering a gas iizinie through saiddelivery end onto the burner for lighting),l the seme. i

18. In un oil burner of the charm-ter de- ;f-,rribeih comprising eburner bowl having' n Central fuel delivery opening', und :1n nir supplyeasing overlying the burner bowl having :i venti-nl uir deliveryopening;l in the virinity of the fuel deliveryY opening und u lateralair inlet opening, u gue lighter pipe for heating the bowl and ignitingthe fuel` said pipe being extended through said air inlet into saidcasing and Within the easing); to n point permitring the delivery of nflame into the burner bowl while the said piping remains shielded by themixing' from the Home ol' the burner.

LEE (i. DANIELS.

CERTIFICATE 0F CORRECTION.

Reissue Patent No. 16,60i. Granted April I9, 19271 to LEE G. DANIELS.

It is hereby certified that error appears in the printed specification0f the above numbered patent requi ring correct ion as fol ows: Page 2,line 129, claim 3. strike out the word "plate" and that the said LettersPatent should be read with this correction therein that the same mayconform to the record of the case in the Patent Office.

Signed and sealed this 17th day of May, A. D. 1927.

M. J. Moore, Seal.

Acting Commissioner of Patent.

